Hannah Poling: compensation is not proof
May 14th, 2008
A recent case of vaccine compensation in the US has been picked up by the UK media, notably the Daily Express, and is being touted as evidence that vaccines cause autism.
Paul Offit provides a commentary in The New England Journal of Medicine on the Hannah Poling case, and explains how the US vaccination compensation scheme has abandoned science over the years.
the VICP’s concession to Hannah Poling was poorly reasoned. First, whereas it is clear that natural infections can exacerbate symptoms of encephalopathy in patients with mitochondrial enzyme deficiencies, no clear evidence exists that vaccines cause similar exacerbations. Indeed, because children with such deficiencies are particularly susceptible to infections, it is recommended that they receive all vaccines.
Second, the belief that the administration of multiple vaccines can overwhelm or weaken the immune system of a susceptible child is at variance with the number of immunologic components contained in modern vaccines. A century ago, children received one vaccine, smallpox, which contained about 200 structural and nonstructural viral proteins. Today, thanks to advances in protein purification and recombinant DNA technology, the 14 vaccines given to young children contain a total of about 150 immunologic components.
Third, although experts testifying on behalf of the Polings could reasonably argue that development of fever and a varicella-vaccine rash after the administration of nine vaccines was enough to stress a child with mitochondrial enzyme deficiency, Hannah had other immunologic challenges that were not related to vaccines. She had frequent episodes of fever and otitis media, eventually necessitating placement of bilateral polyethylene tubes. Nor is such a medical history unusual. Children typically have four to six febrile illnesses each year during their first few years of life; vaccines are a minuscule contributor to this antigenic challenge.
Fourth, without data that clearly exonerate vaccines, it could be argued that children with mitochondrial enzyme deficiencies might have a lower risk of exacerbations if vaccines were withheld, delayed, or separated. But such changes would come at a price. Even spacing out vaccinations would increase the period during which children were susceptible to natural infections, giving a theoretical risk from vaccines priority over a known risk from vaccine-preventable diseases. These diseases aren’t merely historical: pneumococcus, varicella, and pertussis are still common in the United States. Recent measles outbreaks in California, Arizona, and Wisconsin among children whose parents had chosen not to vaccinate them show the real risks of public distrust of immunization.
Offit believes that the US vaccine compensatory scheme should be more stringent.
Going forward, the VICP should more rigorously define the criteria by which it determines that a vaccine has caused harm. Otherwise, the message that the program inadvertently sends to the public will further erode confidence in vaccines and hurt those whom it is charged with protecting.




